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201212120208 = 24311419294721
BaseRepresentation
bin1011101101100100101…
…1010100110010010000
3201020100211002202211110
42323121023110302100
511244040300321313
6232234030013320
720352136542111
oct2733113246220
9636324082743
10201212120208
1178373aa6040
1232bb5647240
1315c88498278
149a4b088208
155379aa5ec3
hex2ed92d4c90

201212120208 has 80 divisors (see below), whose sum is σ = 580882946112. Its totient is φ = 59486208000.

The previous prime is 201212120201. The next prime is 201212120251. The reversal of 201212120208 is 802021212102.

It is not an unprimeable number, because it can be changed into a prime (201212120201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4625713 + ... + 4669008.

Almost surely, 2201212120208 is an apocalyptic number.

It is an amenable number.

201212120208 is an abundant number, since it is smaller than the sum of its proper divisors (379670825904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201212120208 is a wasteful number, since it uses less digits than its factorization.

201212120208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9294784 (or 9294778 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The spelling of 201212120208 in words is "two hundred one billion, two hundred twelve million, one hundred twenty thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 33 41 44 48 66 82 88 123 132 164 176 246 264 328 451 492 528 656 902 984 1353 1804 1968 2706 3608 5412 7216 10824 21648 9294721 18589442 27884163 37178884 55768326 74357768 102241931 111536652 148715536 204483862 223073304 306725793 381083561 408967724 446146608 613451586 762167122 817935448 1143250683 1226903172 1524334244 1635870896 2286501366 2453806344 3048668488 4191919171 4573002732 4907612688 6097336976 8383838342 9146005464 12575757513 16767676684 18292010928 25151515026 33535353368 50303030052 67070706736 100606060104 201212120208